sim card from Ebay , bad idea?

ordered a new phone so I wanted a new SIM for a clean slate. My country require KYC for SIM cards. So i ordered this https://www.ebay.com/itm/295938085941 I see now that the card is being shipped from Israel.

(I'm in another EU country)

Cloning, swapping etc , how bad idea was this on a scale from 1-10? Even if the package is unbroken , I assume someone with physical access (and resources) can do a lot of stuff?

Miss being able to go get one from the corner store. But idea was to load it up by cash bought giftcards.

Also played with the idea of getting a gl-inet portable router and skip SIM card in phone but it is quite a bit of hassle to have another device to maintain and carry...